30302131142 has 4 divisors (see below), whose sum is σ = 45453196716. Its totient is φ = 15151065570.

The previous prime is 30302131141. The next prime is 30302131147. The reversal of 30302131142 is 24113120303.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302131141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7575532784 + ... + 7575532787.

It is an arithmetic number, because the mean of its divisors is an integer number (11363299179).

Almost surely, 2^30302131142 is an apocalyptic number.

30302131142 is a deficient number, since it is larger than the sum of its proper divisors (15151065574).

30302131142 is a wasteful number, since it uses less digits than its factorization.

30302131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151065573.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30302131142 its reverse (24113120303), we get a palindrome (54415251445).

The spelling of 30302131142 in words is "thirty billion, three hundred two million, one hundred thirty-one thousand, one hundred forty-two".